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SSD suddenly drop in performance

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#1
hi guys, i have friend in U.S and he take my advice to built a PC
gigabyte x58a-ud5,i7 950,gskill 3x2g,2xgtx 460, and crucial SSD 64G C300
so now he set it in sata 3 6gbs and suddenly feel there is some drop in SSD speed, it should be over 300mb/s max read speed on sata3 and over 200mb/s in sata2 now max read is about 140mb/s in sata 3
i just give him the SSD ocz tweak tools and auto tweaking still same
what happen guys any idea please
 

MatTheCat

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#2
hi guys, i have friend in U.S and he take my advice to built a PC
gigabyte x58a-ud5,i7 950,gskill 3x2g,2xgtx 460, and crucial SSD 64G C300
so now he set it in sata 3 6gbs and suddenly feel there is some drop in SSD speed, it should be over 300mb/s max read speed on sata3 and over 200mb/s in sata2 now max read is about 140mb/s in sata 3
i just give him the SSD ocz tweak tools and auto tweaking still same
what happen guys any idea please
I know very little about SSD drives and only just installed my first one a few days ago.

I found that any setting other than AHCI in bios, results in serioulsy below par performance.
 
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#3
ok i forget that, sure i tell him about that cuz i use SSD too it's on AHCI
 
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#4
guys anyone
 

wahdangun

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#5
do your SSD support trim?
 
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#6
ofc the C300 has TRIM
 
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#7
TRIM will be disabled once the SSDs run in RAID mode AFAIK. Though RAID is not being used here, is it?
 
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#8
ofc there is no RAID...

Have you tried a Windows reinstall?
 

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#9
turn off defragmentation. you dont defrag SDD's. Win 7 has defrag in the background.
 
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#10
Which gets disabled when OS detects SSD drive...
 
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#11
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#12
Have you tried updating your motherboard? New Bios will stabilize your SSD drive performance...
 
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#13
Tell him to contact the manufacture and explain to them the problem. They should have some sort of solution.
 

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#14
Which gets disabled when OS detects SSD drive...
only after updates because it sure doesnt when its installed on one.
 
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#15
As I said, try to reinstall the OS
 
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#16
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#17
np, after clearing CMOS, AHCI can be a bitch to remember lol

btw, :)Thanks button :p
 
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#18